U.S. patent application number 10/198634 was filed with the patent office on 2003-02-13 for bottle with mixing system.
This patent application is currently assigned to Playtex Products, Inc.. Invention is credited to Renz, Charles J..
Application Number | 20030029827 10/198634 |
Document ID | / |
Family ID | 23184549 |
Filed Date | 2003-02-13 |
United States Patent
Application |
20030029827 |
Kind Code |
A1 |
Renz, Charles J. |
February 13, 2003 |
Bottle with mixing system
Abstract
There is provided an infant feeding bottle system having an
agitator for mixing a powder substance with a liquid in a non-rigid
disposable liner. The bottle system permits a user to mix powdered
formula directly inside a non-rigid liner. The bottle system
enhances the mixing effect, resulting in improved solubility, and
provides for a self-contained uninterrupted mixing and feeding
process.
Inventors: |
Renz, Charles J.;
(Briarcliff Manor, NY) |
Correspondence
Address: |
Charles N.J. Ruggiero, Esq.
Ohlandt, Greeley, Ruggiero & Perle, L.L.P.
10th Floor
One Landmark Square
Stamford
CT
06901-2682
US
|
Assignee: |
Playtex Products, Inc.
|
Family ID: |
23184549 |
Appl. No.: |
10/198634 |
Filed: |
July 18, 2002 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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60306270 |
Jul 18, 2001 |
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Current U.S.
Class: |
215/11.1 ;
215/11.3; 215/386; 215/DIG.8 |
Current CPC
Class: |
A61J 9/001 20130101;
B01F 35/32021 20220101; A61J 11/0085 20130101; Y10S 215/08
20130101; A61J 9/00 20130101; B01F 25/45 20220101; A61J 11/04
20130101; B01F 33/5011 20220101; A61J 11/008 20130101; B01F 23/50
20220101; B01F 31/20 20220101; B01F 25/4523 20220101 |
Class at
Publication: |
215/11.1 ;
215/11.3; 215/DIG.008; 215/386 |
International
Class: |
A61J 009/00; A61J
011/00; B65D 023/12 |
Claims
What is claimed is:
1. An agitator for mixing components in a container assembly having
a flexible liner, the agitator comprising: an annular ring forming
a hole therethrough; a spoke having a fin and a plurality of
apertures; and a connecting member, wherein said connecting member
secures said spoke to said annular ring.
2. The agitator of claim 1, wherein said annular ring has an outer
surface and a securing member for disposing the agitator at least
partially in said flexible liner.
3. The agitator of claim 2, wherein said securing member is an
annular bead extending from said outer surface.
4. The agitator of claim 1, wherein said fin is an upper fin and a
lower fin.
5. The agitator of claim 1, wherein said annular ring, said
connecting member and said spoke form a cup-like shape.
6. The agitator of claim 1, wherein said hole is in a first plane,
said spoke is in a second plane, and said first plane and said
second plane are substantially parallel.
7. The agitator of claim 1, wherein said hole is in a first plane,
said fin is in a third plane, and said first plane and said third
plane are substantially perpendicular.
8. The agitator of claim 1, wherein said connecting member is a
plurality of partitions.
9. The agitator of claim 8, wherein said annular ring has a
longitudinal center axis and said plurality of partitions extend
from said annular ring towards said axis.
10. The agitator of claim 9, wherein said plurality of partitions
are substantially equally spaced apart.
11. The agitator of claim 1, wherein said spoke is a plurality of
spokes, each of said plurality of spokes has a first end and a
second end, each of said first ends are connected to said
connecting member and each of said second ends are connected to
each other at a hub.
12. The agitator of claim 11, wherein said hub is centrally
located.
13. The agitator of claim 12, wherein said hub has a handle.
14. The agitator of claim 12, wherein said plurality or spokes are
substantially equally spaced apart.
15. A container assembly for mixing components in a flexible liner,
the assembly comprising: a holder having a body with a first open
end and a second end; a flexible liner having an open end and an
inner volume; an agitator; a nipple; and a fastening ring, wherein
said holder, said liner, said agitator, said nipple and said
fastening ring are secured together to form the assembly, and
wherein said agitator has an annular ring at least partially
disposed through said open end of said liner and in said inner
volume.
16. The assembly of claim 15, wherein said agitator further
comprises a connecting member and a spoke having a fin, wherein
said annular ring forms a hole therethrough, and wherein said
connecting member secures said spoke to said annular ring and said
spoke forms a plurality of apertures.
17. The assembly of claim 15, wherein said annular ring has an
outer surface and a securing member for fastening said agitator to
said liner.
18. The assembly of claim 17, wherein said securing member is an
annular bead extending from said outer surface.
19. The assembly of claim 16, wherein said fin is an upper fin and
a lower fin.
20. The assembly of claim 16, wherein said annular ring, said
connecting member and said spoke form a cup-like shape.
21. The assembly of claim 16, wherein said hole is in a first
plane, said spoke is in a second plane, and said first plane and
said second plane are substantially parallel.
22. The assembly of claim 16, wherein said hole is in a first
plane, said fin is in a third plane, and said first plane and said
third plane are substantially perpendicular.
23. The assembly of claim 16, wherein said connecting member is a
plurality of partitions.
24. The assembly of claim 23, wherein said annular ring has a
longitudinal center axis, and wherein said plurality of partitions
extend from said annular ring towards said axis.
25. The assembly of claim 24, wherein said plurality of partitions
are substantially equally spaced apart.
26. The assembly of claim 16, wherein said spoke is a plurality of
spokes, each of said plurality of spokes has a first end and a
second end, each of said first ends are connected to said
connecting member and each of said second ends are connected to
each other at a hub.
27. The assembly of claim 26, wherein said hub has a handle.
28. The assembly of claim 26, wherein said hub is centrally
located.
29. The assembly of claim 28, wherein said plurality of spokes are
substantially equally spaced apart.
30. The assembly of claim 15, wherein said second end of said
holder is open.
31. The assembly of claim 15, wherein said first end of said holder
has a first diameter, said second end of said holder has a second
diameter, and said first diameter is smaller than said second
diameter.
32. The assembly of claim 15, wherein said holder has a rim for
engagement with said liner.
33. The assembly of claim 15, wherein said liner has a rim for
engagement with said holder and said agitator.
34. The assembly of claim 15, wherein said holder body has an outer
surface having external threads, said fastening ring has an inner
surface having internal threads, and said external threads and said
internal threads are engageable for fastening said fastening ring
to said holder.
35. The assembly of claim 15, wherein said holder body has a slot
formed therein.
36. The assembly of claim 35, wherein said slot is a plurality of
upper slots and a plurality of lower slots, said plurality of upper
slots formed through an upper portion of said holder body and being
diametrically opposed, and said plurality of lower slots formed
through a lower portion of said holder body and being diametrically
opposed.
37. The assembly of claim 15, further comprising a cap engageable
with said fastening ring.
38. A method of mixing components in a container assembly having a
holder, a flexible liner, an agitator, a nipple and a fastening
ring, the steps comprising: positioning the flexible liner in the
holder, said liner having an open end and said holder having a
first open end and a second end; filling said liner with a first
component and a second component; inserting the agitator at least
partially in said liner, said agitator having a plurality of
apertures therethrough; positioning the nipple adjacent said
agitator; positioning the fastening ring over the nipple; securing
said fastening ring to said holder to form the container assembly;
and shaking the container assembly to mix said first component and
said second component.
39. The method of claim 38, further comprising the step of securing
a cap to said fastening ring before shaking the container
assembly.
40. The method of claim 38, further comprising the step of
squeezing a lower portion of said liner to remove air.
Description
RELATED APPLICATION
[0001] This application is related to and claims priority in,
copending U.S. Provisional Application Ser. No. 60/306,270, filed
Jul. 18, 2001, the disclosure of which is incorporated herein by
reference.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates to an infant feeding bottle
and, more particularly, to an infant feeding bottle system having
an agitator for mixing a powder substance with a liquid. More
particularly, the system can mix a powdered substance and a liquid
in a disposable liner. The system provides for improved mixing and
allows for uninterrupted mixing and feeding.
[0004] 2. Description of the Prior Art
[0005] The traditional infant feed bottle has a rigid bottle body
having an open upper end, a nipple and a fastening ring used to
affix the nipple to the open upper end of the bottle body. The
traditional bottle does not efficiently and adequately mix powdered
baby formula with a liquid. To mix powdered baby formula with a
liquid using a traditional infant feed bottle requires the
following steps: (1) add a specified amount of liquid to the rigid
bottle body, (2) add a certain amount of powdered formula, (3)
affix the nipple to the rigid bottle body with the fastening ring,
and (4) hand shake the infant feed bottle until the powdered
formula is adequately dissolved in the liquid. This process is
deficient in that undissolved lumps of powdered formula are often
formed. This can lead to congestion of the nipple outlet, thus
affecting the free flow of fluid out of the nipple and resulting in
unnecessary waste.
[0006] A number of rigid infant feeding bottles have been designed
to improve the bottle formula mixing process. For example, bottles
have been designed that use separate compartments to keep a
powdered formula and a liquid separated until mixing is desired.
Typical designs for this type of bottle utilize a displaceable
partition that separates the compartments. For example, U.S. Pat.
No. 5,794,802 to Caola describes a baby bottle having an insert
that forms a storage compartment for holding powdered formula prior
to being mixed with a liquid stored in the bottle. To mix the
formula with the liquid, a user pushes on a nipple assembly
fastened to the bottle to displace a seal that separates the
storage compartment from the liquid in the bottle. This action
provides a passage for the liquid and powdered formula to combine
in the bottle and storage compartment. The bottle can then be
shaken to facilitate the dissipation of the formula into the
liquid.
[0007] It is also known to provide a rigid infant feeding bottle or
system having a device that facilitates in the mixing of powdered
formula into liquid. For example, U.S. Pat. No. 5,788,369 to Tseng,
describes an infant feeding bottle with a mixing element mounted on
an affixing ring and having a stirring body made up of stirring
ribs that protrude inwardly from the ring into the bottle.
[0008] Another example of a device designed and used to facilitate
in the mixing of powdered formula into liquid is found in U.S. Pat.
No. 4,818,114 to Ghavi. This patent describes a device that can be
attached to a baby bottle and uses a mixing disc having a plurality
of uniformly spaced arms radiating from a central post that act as
a handle to aid in the handling of the mixing disc. The arms of the
mixing disc have a diamond shaped cross section to produce multiple
shear points and increase turbulence during the mixing process.
[0009] It is also known to provide an infant feeding bottle with a
non-rigid liner-type or disposable feeding system that uses a
sterilized and disposable liner that is removably supported within
a rigid tubular holder. An example of this type of disposable
feeding system is described in U.S. Pat. No. 3,763,542. This
disposable liner infant feeding system is popular among parents
that are mobile and often unable to find facilities that are
adequate to wash and/or sterilize infant feeding devices. However,
there are problems with this system. The process is clumsy and time
consuming. The required steps include: (1) pour liquid and powdered
formula into a rigid container and shake or stir until the powder
formula is adequately dissolved into the liquid, (2) remove a
nipple and fastening ring from a holder and pour the liquid formula
mix into a liner, and (3) reaffix the nipple and fastening ring to
the holder and proceed with feeding an infant.
[0010] An alternative is to mix the powdered formula and liquid
directly inside a disposable liner assembled in a holder. The
problem with this is that, in a non-rigid disposable liner, the
powdered formula does not dissolve in a liquid as well when shaken.
The liquid tends to move with the liner, thereby creating less
turbulence within the liner for the powdered formula to dissolve
into the liquid. This inefficient mixing process results in a lumpy
liquid formula mix.
SUMMARY OF THE INVENTION
[0011] It is an object of the present invention to provide an
infant feeding bottle or system having a disposable liner.
[0012] It is another object of the present invention to provide
such a system that enables a user to effectively and efficiently
mix a powdered formula with liquid directly inside a non-rigid
disposable liner.
[0013] It is still another object of the present invention to
provide such an infant feeding bottle having a disposable liner
system that comprises a tubular holder having a wider bottom and
narrower top.
[0014] It is yet another object of the present invention to provide
an agitator that seats inside a liner to aid in the mixing of a
powdered formula with liquid.
[0015] It is a further object of the present invention to provide
an agitator that secures a liner in place while a user presses out
any excess air in the liner.
[0016] It is still a further object of the present invention to
provide an agitator having a handle for ease of insertion and
removal.
[0017] It is yet a further object of the present invention to
provide a method for the uninterrupted formula mixing and
feeding.
[0018] These and other objects and advantages of the present
invention are achieved by an agitator for mixing components in a
container assembly having a flexible liner. The agitator comprises
an annular ring forming a hole therethrough, a connecting member
and a spoke having a fin. The connecting member secures the spoke
to the annular ring and the spoke forms a plurality of apertures.
The annular ring has an outer surface and can have a securing
member for disposing the agitator at least partially in the
flexible liner. The securing member can be an annular bead
extending from the outer surface. The fin can be an upper fin and a
lower fin. The annular ring, the connecting member and the spoke
can form a cup-like shape. The hole is in a first plane, the spoke
is in a second plane, and the first plane and the second plane can
be substantially parallel. The fin is in a third plane and the
first plane and the third plane can be substantially
perpendicular.
[0019] The connecting member can be a plurality of partitions. The
annular ring has a longitudinal center axis and the partitions can
extend from the annular ring towards the axis. The partitions can
be substantially equally spaced apart. The spoke can be a plurality
of spokes with each of the spokes having a first end and a second
end. Each of the first ends can be connected to the connecting
member, and each of the second ends can be connected to each other
at a hub. The hub can be centrally located, and can have a handle.
The spokes can be substantially equally spaced apart.
[0020] The present invention is also a container assembly for
mixing components in a flexible liner. The assembly comprises a
holder having a body with a first open end and a second end, a
flexible liner having an open end and an inner volume, an agitator,
a nipple and a fastening ring. The holder, liner, agitator, nipple
and fastening ring are secured together to form the assembly. The
agitator has an annular ring at least partially disposed through
the liner open end and in the inner volume. The annular ring forms
a hole therethrough. The agitator can comprise a connecting member
and a spoke having a fin. The connecting member can secure the
spoke to the annular ring and the spoke can form a plurality or
number of apertures. The annular ring has an outer surface and can
have a securing member for fastening the agitator to the liner. The
securing member can be an annular bead extending from the outer
surface. The fin can be an upper fin and a lower fin. The annular
ring, connecting member and spoke can form a cup-like shape.
[0021] The hole is in a first plane, the spoke is in a second
plane, and the first plane and the second plane can be
substantially parallel. The fin is in a third plane, and the first
plane and the third plane can be substantially perpendicular. The
connecting member can be a plurality of partitions. The annular
ring has a longitudinal center axis and the partitions can extend
from the annular ring towards the axis. The partitions can be
substantially equally spaced apart. The spoke can be a plurality of
spokes with each spoke having a first end and a second end. Each
first end can be connected to the connecting member and each second
end can be connected to each other at a hub. The hub can have a
handle, and can be centrally located. The spokes can be
substantially equally spaced apart.
[0022] The second end of the holder can be open. The holder first
end has a first diameter, the holder second end has a second
diameter, and the first diameter is smaller than the second
diameter. The holder can have a rim for engagement with the liner.
The liner can have a rim for engagement with the holder and the
agitator. The holder body can have an outer surface having external
threads. The fastening ring can have an inner surface having
internal threads, and the external threads and the internal threads
can be engageable for fastening the fastening ring to the holder.
The holder body can have a slot formed therein. The slot can be two
upper slots and two lower slots with the upper slots formed through
an upper portion of the holder body and being diametrically
opposed, and the lower slots formed through a lower portion of the
holder body and being diametrically opposed. The assembly can
further comprise a cap engageable with the fastening ring.
[0023] The present invention is also a method of mixing components
in a container assembly having a holder, a flexible liner, an
agitator, a nipple and a fastening ring. The steps comprise: (1)
positioning the flexible liner in the holder with the liner having
an open end and the holder having a first open end and a second
end; (2) filling the liner with a first component and a second
component; (3) inserting the agitator at least partially in the
liner with the agitator having a plurality of apertures
therethrough; (4) positioning the nipple adjacent the agitator; (5)
positioning the fastening ring over the nipple; (6) securing the
fastening ring to the holder to form the container assembly; and
(7) shaking the container assembly to mix the first component and
the second component. The method can further comprise the step of
securing a cap to the fastening ring before shaking the container
assembly. The method can further comprise the step of squeezing a
lower portion of the liner to remove air.
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] FIG. 1 is an exploded view of an infant feeding bottle
system in accordance with a preferred embodiment of the present
invention;
[0025] FIG. 2 is a side view of a tubular holder of the system of
FIG. 1;
[0026] FIG. 3 is a top view of the tubular holder of FIG. 1;
[0027] FIG. 4 is a bottom view of the tubular holder of FIG. 1;
[0028] FIG. 5 is a perspective view of a first embodiment of the
agitator with a handle of the system of FIG. 1;
[0029] FIG. 6 is a side view of the first embodiment of the
agitator with a handle of FIG. 1;
[0030] FIG. 7 is a top view of the first embodiment of the agitator
with a handle of FIG. 1;
[0031] FIG. 8 is a bottom view of the first embodiment of the
agitator with a handle of FIG. 1;
[0032] FIG. 9 is a perspective view of a second embodiment of the
agitator with a handle of the system of FIG. 1;
[0033] FIG. 10 is a side view of the second embodiment of the
agitator with a handle of FIG. 1;
[0034] FIG. 11 is a top view of the second embodiment of the
agitator with a handle of FIG. 1;
[0035] FIG. 12 is a bottom view of the second embodiment of the
agitator with a handle of FIG. 1;
[0036] FIG. 13 is a side view of a fastening ring of the system of
FIG. 1;
[0037] FIG. 14 is a bottom view of the fastening ring of FIG.
1;
[0038] FIG. 15 is a side section view of the fastening ring
threadably engaged with the tubular holder of FIG. 1;
[0039] FIG. 16 is a side section view of the infant feeding bottle
system of FIG. 1, as assembled;
[0040] FIG. 17 is a side view of a first embodiment of the infant
feeding bottle system of FIG. 1; and
[0041] FIG. 18 is a side view of a second embodiment of the infant
feeding bottle system of FIG. 1.
DETAILED DESCRIPTION OF THE INVENTION
[0042] Referring to the drawings and in particular FIG. 1, there is
shown an infant feeding bottle system in accordance with a
preferred embodiment of the present invention generally represented
by reference numeral 1. The infant feeding bottle system 1 has a
holder 10 and an agitator 30. Preferably, infant bottle system 1
also has a nipple 70 and a fastening ring 80. The infant bottle
system 1 may also have a cap 90.
[0043] The holder 10, which is preferably tubular, and has an upper
end 11 with a rim 12 and an outer threaded portion 13. Rim 12
provides an opening 14 for receiving a liner 25. The liner 25 fits
inside opening 14 and is supported by holder 10 by a lip 26 located
on an upper end 27 of the liner. The liner 25 rests upon support
rim 12 of the upper end 11 of holder 10. The liner 25 has a bottom
28. Preferably, liner 25 is a non-rigid and/or flexible liner.
Also, preferably, liner 25 is disposable.
[0044] The agitator 30 also fits into opening 14 and seats down
inside liner 25. The nipple 70 is positioned above agitator 30. The
fastening ring 80 threadably engages holder 10 to secure nipple 70,
agitator 30 and liner 25 firmly in position onto the upper end 11
of holder 10.
[0045] Referring to FIGS. 2 through 4, holder 10 preferably has a
wider lower portion 17 and narrower upper portion 16. This
configuration allows a user (infant and/or parent) to hold holder
10 more easily. Holder 10 is adapted to accommodate and support
liner 25 as shown in FIG. 1. Holder 10 preferably has four side
slots 18, 19. Two side slots 18 are preferably diametrically
opposed, and are located in the upper portion 16 of holder 10. Two
side slots 19 are also preferably diametrically opposed, and are
located in the upper portion 17 of holder 10. These side slots 18,
19 allow holder 10 to stand upright in a pot of heated water and
improve liquid flow during bottle warming. Holder 10 preferably has
a bottom opening 21. The bottom opening 21 is sufficiently large to
allow a user to press bottom 28 of liner 25 to force out all excess
air contained in the liquid formula mix.
[0046] Referring to FIGS. 5 through 8, there is shown a preferred
agitator 30 of the present invention. The agitator 30 has an
annular ring 31, a plurality of partitions 32 extending from ring
31, and a plurality of spokes 33. Each spoke 33 is connected at one
end with a different partition 32. Spokes 33 are connected together
at the other end of each of the spokes at a hub 35.
[0047] The annular ring 31 has a diameter of sufficient size to fit
snugly in holder 10. Ring 31 also has an outward protruding bead 40
that runs along the upper outer circumference of ring 31. The bead
40 is adapted to rest tightly against lip 26 to securely hold liner
25 in position against rim 12.
[0048] The plurality of wall partitions 32 are preferably uniformly
spaced and extend downward from ring 31 and, preferably, slightly
inward toward the center axis of agitator 30. The plurality of
spokes 33 are also preferably uniformly spaced apart. Each spoke 33
is connected to a different partition 32 and radiates toward the
center axis of agitator 30 towards hub 35. The ends of spoke 33
meet at hub 35. Hub 35 can form a handle 34 for agitator 30.
Preferably, each spoke 33 is integrally formed with its
corresponding partition 32. An aperture 37 separates each adjacent
pair of spokes 33. Since the plurality of spokes 33 extend radially
outward for a distance and merge with the downwardly extending wall
partitions 32, the spokes and partitions form a cup-like structure
36.
[0049] At area 100, there is preferably provided a centrally
located handle 34. The handle 34 functions to ease the insertion
and removal of agitator 30 from holder 10.
[0050] Each spoke 33 has at least one fin, and preferably a pair of
fins. The fins include a lower fin 38 connected to a first, bottom
surface of spokes 33 and an upper fin 39 connected to a second,
upper surface of spokes 33 opposite the first surface. The pair of
fins 38, 39 function to increase and improve the shearing action
and turbulent flow of fluid during the mixing/shaking process.
[0051] Referring to FIGS. 9 through 12, there is shown a second or
alternative agitator 50 of the present invention. The agitator 30
has an annular ring 51, a plurality of partitions 52 extending from
ring 51, and a plurality of spokes 53 each connected at a one end a
different partition 52 with the other end of each of the spokes
connected together at a hub 55.
[0052] Like the first or preferred embodiment shown in FIGS. 5
through 8, the annular ring 51 has a diameter of sufficient size to
fit snugly in holder 10. However, unlike the first embodiment, ring
31 also has an outward protruding bead 40 that runs along the upper
outer circumference of ring 31. The bead 40 is adapted to rest
tightly against lip 26 to securely hold liner 25 in position
against rim 12.
[0053] As with the first embodiment, the plurality of wall
partitions 52 are preferably uniformly spaced and extend downward
from ring 51 and, preferably, slightly inward toward the center
axis of agitator 50. The plurality of spokes 53 are also preferably
uniformly spaced apart. Each spoke 53 is connected to a different
partition 52 and radiates toward the center axis of agitator 50
towards hub 55. The ends of spoke 53 meet at hub 55. Hub 55 can
form a handle 54 for agitator 50. Preferably, each spoke 53 is
integrally formed with its corresponding partition 52. An aperture
57 separates each adjacent pair of spokes 53. Since the plurality
of spokes 53 extend radially outward for a distance and merge with
the downwardly extending wall partitions 52, the spokes and
partitions form a cup-like structure 56.
[0054] At area 105, there is preferably provided a centrally
located handle 54. The handle 54 functions to ease the insertion
and removal of agitator 50 from holder 10 and liner 25.
[0055] Each spoke 53 has at least one fin, and preferably a pair of
fins. The fins include a lower fin 58 connected to a first, bottom
surface of spokes 53 and an upper fin 59 connected to a second,
upper surface of spokes 53 opposite the first surface. The pair of
fins 58, 59 function to increase and improve the shearing action
and turbulent flow of fluid during the mixing/shaking process.
[0056] Referring to FIGS. 13 through 15, fastening ring 80 has an
inner threaded portion 82 that is adapted to rotatably engage the
outer threaded portion 13 of upper end 11 of holder 10. The liner
25, agitator 30 and nipple 70 all fit together and are engaged
between fastening ring 80 and holder 10 when fastening ring 80 is
secured with the outer threaded portion 13 of upper end 11 of
holder 10. Fastening ring 80 preferably also has an annular groove
81 that runs centrally along the outer circumference of fastening
ring 80. The fastening ring 80 can receive a lip 91 that protrudes
inwardly from the inner surface of cap 90 as shown in FIG. 1.
Referring to FIG. 18, fastening ring 80 can also have grippers 84
located on its outer circumference. The grippers 84 aid a user in
rotating fastening ring 80 to engage and/or disengage with outer
threaded portion 13 of upper end 11 of holder 10.
[0057] FIGS. 16 through 18 show the assembled system 1. To use
system 1 of the present invention, the following steps may be
employed: (1) fill liner 25 with liquid, preferably an appropriate
amount of liquid and add the corresponding amount of powdered
formula into liner 25; (2) insert agitator 30 into liner 25 with
ring 31 (holding lip 26 firmly in position); (3) position nipple 70
atop agitator 30, fastening ring 80 over both nipple 70 and
agitator 30 and secure fastening ring 80 to holder 10; (4) (ensure
fastening ring 80, nipple 70, agitator 30 and liner 25 are all
securely positioned) optionally, but preferably, place cap 90 over
nipple 70 and fastening ring 80 until lip 91 of cap 90 fits into
groove 81 of fastening ring 80, thus holding cap 90 in place; (5)
shake bottle 1 to dissipate powdered formula into the liquid; and
(6) remove cap 90 and press bottom 28 of liner 25 to force out all
excess air contained in the liquid formula mix. Thereafter, one can
commence with feeding of an infant.
[0058] The bottle system permits a user to mix powdered formula
directly inside a non-rigid liner. The bottle system enhances the
mixing effect, resulting in improved solubility, and provides for a
self-contained uninterrupted mixing and feeding process.
[0059] The present invention having been thus described with
particular reference to the preferred forms thereof, it will be
obvious that various changes and modifications may be made therein
without departing from the spirit and scope of the present
invention as defined in the appended claims
* * * * *